Two of the solutions for cleaning up salinized soil are flushing the soil with water, and placing underground drainage systems. The negative aspect of these solutions is their____________________
Fill in the blanks with correct word
expense
high cost
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The Polynesian colonies used a system of shells and bamboo to represent island positions for navigation
a. True b. False
A primary function of fertilizer is to replace human labor.
Answer the following statement true (T) or false (F)
What implication(s) does the law of conservation of matter have for humans?
A. We cannot create energy because it is neither created nor destroyed. B. Natural resources are unlimited because they are used and reused by living organisms. C. Disposable goods are not going "away" when we throw them out. D. As matter is recycled, it loses some of its integrity, so we need to be careful when we dispose of goods. E. All of these are implications of the law of conservation of matter.
Tides are the hourly changes in the elevation of the ocean surface.
a. true b. false